3 Layer Guinness-Chocolate Cake

INGREDIENTS

2 cups

stout (such as Guinness)

2 cups

unsalted butter

1 1/2 cups

unsweetened cocoa powder (preferably Dutch-process)

4 cups

all purpose flour

4 cups

sugar

1 tbsp

baking soda

1 1/2 tsp

salt

large eggs

1 1/3 cups

sour cream

2 cups

whipping cream

1 lb

bittersweet (not unsweetened) or semisweet chocolate, chopped